Source: CP staff
Advanced precast/prestressed production and hauling techniques, coupled with the prevalence of design-build delivery and value engineering, have led to new length records for single-piece, road-delivered concrete girders. Compared to structures of earlier practice, new precast/prestressed bridges can tend toward a) fewer girders at optimized spacing; b) shallower girders for height-sensitive, new or existing roadway conditions; or, c) longer girders bearing on fewer piers.
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